Throughputs are basically the major thing most parks care about, and put first before anything else, including guest interaction...Indeed, some parks focus on guest interaction (see Chessie) more so than this, as seems to be the case with Thorpe and can be seen by how they allow the staff dress and act... But if they cannot do it they cannot do it... Cos if a TL spots it, even if it's in the guest's best interests, the staff get bollocked for it... So it's not as simple as people think...